@book{
      international2005iaea,
      title={SSDL Newsletter Issue No. 50, February 2005},
      author={ },
      series={entity},
      number={50 },
      year={2005},
      isbn={ },
      url={/publications/7256/ssdl-newsletter-issue-no-50-february-2005 },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }